<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
<script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
</head>

<body>
  <div id = "app">
    <input type="text" @keyup.esc = "clearInput" @keyup.enter = "commitAjax">
  </div>

  <script>
    const app = new Vue({
      el:"#app",
      data:{

      },
      methods:{
        clearInput(e){
          e.target.value = "";
          console.log('clearInput方法');
        },
        commitAjax(){
          console.log('触发commitAjax方法');
        }
      }
    })
  </script>
  </div>
</body>
</html>